Performance Testing covers a broad range of testing, usually a product, part, material, or system’s ability to meet its design, engineering, or functional specifications and requirements, including any required environmental conditions in which the product, part, material, or system will be used.

What Does Durability Testing Cover?
Durability testing is the duration of time a product, part, material, or system can meet its performance requirements. e.g. lifetime span. Durability testing is generally considered a subset of reliability testing.

What is Involved with Reliability Testing?
Reliability testing can generally be looked at as any interruptions in usage or performance during the lifetime span of a product, part, material, or system.

Good products seek to minimize the unexpected interruptions in performance throughout the duration of the typical of customer experience. So good testing looks to maximize, catch, or expose these unexpected interruptions in performance during product evaluation, and the conditions in which these interruptions occur.